Harris County, TX

ZIP 77068

In ZIP 77068, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Harris County Mud 233 meets every EPA legal limit; 9 contaminants are above health goals, led by arsenic at 444× California’s Public Health Goal.
• Nearest Superfund site: Jones Road Ground Water Plume, 7.0 miles away.
• Largest share of modeled toxic air from industry: Lyondell Chemical Co (27%), mostly ethylene oxide.
• Fine particles (PM2.5) average 8.8 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 38,374 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 77068

• Superfund sites nearbyA to C
• Factories and industrial sitesF
• Oil and gas wellsD
• Parks and nature nearbyC to D
• Air qualityF
• Drinking water qualityA to C
• Pesticide useA to C
• Neighborhood health statusA to C
• Past wildfire impactsA
• Past flood impactsC
• Noise levelsA
• Radiation signalsA

Based on 6 census tracts · compiled October 25, 2026 · how each grade works and its sources

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